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-rw-r--r--src/qt/receiverequestdialog.cpp166
1 files changed, 166 insertions, 0 deletions
diff --git a/src/qt/receiverequestdialog.cpp b/src/qt/receiverequestdialog.cpp
new file mode 100644
index 0000000000..b40cda9b32
--- /dev/null
+++ b/src/qt/receiverequestdialog.cpp
@@ -0,0 +1,166 @@
+#include "receiverequestdialog.h"
+#include "ui_receiverequestdialog.h"
+
+#include "bitcoinunits.h"
+#include "guiconstants.h"
+#include "guiutil.h"
+#include "optionsmodel.h"
+
+#include <QPixmap>
+#if QT_VERSION < 0x050000
+#include <QUrl>
+#endif
+
+#include "bitcoin-config.h" /* for USE_QRCODE */
+
+#ifdef USE_QRCODE
+#include <qrencode.h>
+#endif
+
+ReceiveRequestDialog::ReceiveRequestDialog(const QString &addr, const QString &label, quint64 amount, const QString &message, QWidget *parent) :
+ QDialog(parent),
+ ui(new Ui::ReceiveRequestDialog),
+ model(0),
+ address(addr)
+{
+ ui->setupUi(this);
+
+ QString target = label;
+ if(target.isEmpty())
+ target = addr;
+ setWindowTitle(tr("Request payment to %1").arg(target));
+
+ ui->lnAddress->setText(addr);
+ if(amount)
+ ui->lnReqAmount->setValue(amount);
+ ui->lnReqAmount->setReadOnly(true);
+ ui->lnLabel->setText(label);
+ ui->lnMessage->setText(message);
+
+#ifndef USE_QRCODE
+ ui->btnSaveAs->setVisible(false);
+ ui->lblQRCode->setVisible(false);
+#endif
+
+ genCode();
+}
+
+ReceiveRequestDialog::~ReceiveRequestDialog()
+{
+ delete ui;
+}
+
+void ReceiveRequestDialog::setModel(OptionsModel *model)
+{
+ this->model = model;
+
+ if (model)
+ connect(model, SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
+
+ // update the display unit, to not use the default ("BTC")
+ updateDisplayUnit();
+}
+
+void ReceiveRequestDialog::genCode()
+{
+ QString uri = getURI();
+ ui->btnSaveAs->setEnabled(false);
+ ui->outUri->setPlainText(uri);
+#ifdef USE_QRCODE
+ if (uri != "")
+ {
+ ui->lblQRCode->setText("");
+
+ QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
+ if (!code)
+ {
+ ui->lblQRCode->setText(tr("Error encoding URI into QR Code."));
+ return;
+ }
+ myImage = QImage(code->width + 8, code->width + 8, QImage::Format_RGB32);
+ myImage.fill(0xffffff);
+ unsigned char *p = code->data;
+ for (int y = 0; y < code->width; y++)
+ {
+ for (int x = 0; x < code->width; x++)
+ {
+ myImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff));
+ p++;
+ }
+ }
+ QRcode_free(code);
+
+ ui->lblQRCode->setPixmap(QPixmap::fromImage(myImage).scaled(300, 300));
+ ui->btnSaveAs->setEnabled(true);
+ }
+#endif
+}
+
+QString ReceiveRequestDialog::getURI()
+{
+ QString ret = QString("bitcoin:%1").arg(address);
+ int paramCount = 0;
+
+ if (ui->lnReqAmount->validate())
+ {
+ // even if we allow a non BTC unit input in lnReqAmount, we generate the URI with BTC as unit (as defined in BIP21)
+ ret += QString("?amount=%1").arg(BitcoinUnits::format(BitcoinUnits::BTC, ui->lnReqAmount->value()));
+ paramCount++;
+ }
+
+ if (!ui->lnLabel->text().isEmpty())
+ {
+ QString lbl(QUrl::toPercentEncoding(ui->lnLabel->text()));
+ ret += QString("%1label=%2").arg(paramCount == 0 ? "?" : "&").arg(lbl);
+ paramCount++;
+ }
+
+ if (!ui->lnMessage->text().isEmpty())
+ {
+ QString msg(QUrl::toPercentEncoding(ui->lnMessage->text()));
+ ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
+ paramCount++;
+ }
+
+ // limit URI length
+ if (ret.length() > MAX_URI_LENGTH)
+ {
+ ui->lblQRCode->setText(tr("Resulting URI too long, try to reduce the text for label / message."));
+ return QString("");
+ }
+
+ return ret;
+}
+
+void ReceiveRequestDialog::on_lnReqAmount_textChanged()
+{
+ genCode();
+}
+
+void ReceiveRequestDialog::on_lnLabel_textChanged()
+{
+ genCode();
+}
+
+void ReceiveRequestDialog::on_lnMessage_textChanged()
+{
+ genCode();
+}
+
+void ReceiveRequestDialog::on_btnSaveAs_clicked()
+{
+#ifdef USE_QRCODE
+ QString fn = GUIUtil::getSaveFileName(this, tr("Save QR Code"), QString(), tr("PNG Images (*.png)"));
+ if (!fn.isEmpty())
+ myImage.scaled(EXPORT_IMAGE_SIZE, EXPORT_IMAGE_SIZE).save(fn);
+#endif
+}
+
+void ReceiveRequestDialog::updateDisplayUnit()
+{
+ if (model)
+ {
+ // Update lnReqAmount with the current unit
+ ui->lnReqAmount->setDisplayUnit(model->getDisplayUnit());
+ }
+}